Malicious PDF — malware analysis report

Heuristics 4

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ttraff.me/aws?keyword=makkar+ielts+speaking+pdf+download+2019 In PDF document text

  • https://cdn-cms.f-static.net/uploads/4365657/normal_5f8c85cb4b2a6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4374963/normal_5f928b9fb522e.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4375207/normal_5f8d58b1b0531.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4377115/normal_5f8b0f32eeafe.pdfIn PDF document text
  • https://fejamelaluboj.weebly.com/uploads/1/3/4/3/134311679/fowejedopifelajiw.pdfIn PDF document text
  • https://dubutabinagi.weebly.com/uploads/1/3/4/4/134441981/nesupimimazo.pdfIn PDF document text
  • https://rasuzumiketasak.weebly.com/uploads/1/3/4/3/134393825/pokapudujorebiwu.pdfIn PDF document text
  • https://dokakida.weebly.com/uploads/1/3/1/3/131380589/xunolora_givixo_xugitijifos.pdfIn PDF document text
  • https://xutifivaluladar.weebly.com/uploads/1/3/4/3/134337767/1412161.pdfIn PDF document text
  • https://xujaxivef.weebly.com/uploads/1/3/1/4/131438557/bisevaxi.pdfIn PDF document text
  • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/c8a1498.pdfIn PDF document text
  • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/pekufejulenaperom.pdfIn PDF document text
  • https://gofolonuk.weebly.com/uploads/1/3/4/3/134313710/dcaea119618.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00005f11.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00005f11.bin)
  • https://uploads.strikinglycdn.com/files/443c000d-c7ad-4bf8-8cff-9dbe2b3c0878/berenstain_bears_new_neighbors.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a015b836-4c21-4583-a714-3a03d2d20138/zadizevopanopafeda.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3f52666a-6b8c-48f8-a56f-70a5a1717a24/bugufusogofugegifipejap.pdfIn PDF document text
  • https://s3.amazonaws.com/tokafanawa/dolavivedufiminox.pdfIn PDF document text
  • https://s3.amazonaws.com/bulolimepol/54918899196.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00005f11.bin)

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